The Swiss Robert Fehlmann commissioned a special vehicle from Ghia for the 1953 Mille Miglia. With Alfa technology and futuristic lines, it caused quite a stir. However, the car was destroyed in the race, but the design ideas inspired 13 offspring based on Fiat, Jaguar, Aston Martin, AC Cobra and DeSoto. They are called "Supersonic". In this report, the 13 Ghia Supersonic models are discussed and shown in many historical and current pictures.